JPS6235211Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a flat cable for wiring between a floor surface and a carpet laid on the floor surface.

Conventionally, as shown in FIG. 1, a flat cable main body 3 consisting of a plurality of flat conductive plates 1 embedded in a strip-shaped insulating material 2 has been used for carpet underlay wiring. This flat cable body 3 is equipped with a lower surface protection made of metal or resin in order to prevent protrusions protruding from the floor surface on which it is laid from penetrating the insulating material 2 of the flat cable body 3 and exposing the conductive plate 1. It is necessary to provide a seat 4'. In addition, it is necessary to provide a metal top protection sheet 5' to protect against sharp obstacles that may penetrate the carpet and further penetrate the insulating material 2 of the flat cable body 3 and come into contact with the conductive plate 1. be. Further, the metal upper surface protection sheet 5' is also necessary for grounding. In order to satisfy this requirement,
Conventionally, as shown in FIG. 1, there is a cable in which an upper protective sheet 5' and a lower protective sheet 4' are provided separately from the flat cable main body 3. In addition, at the connection part of the flat cable main body 3, a second cable is connected to the conductive plate 1.
A connector 7 is used as shown.

However, since the three layers of the upper surface protection sheet 5', the flat cable main body 3, and the lower surface protection sheet 4' are laid independently, a long construction time is required. Furthermore, since these three layers are each fixed to the floor with adhesive tape, the amount of adhesive tape used increases. Furthermore, during use, the upper protective sheet 5' and the lower protective sheet 4' may be displaced from the flat cable main body 3 and lose their function of protecting the flat cable main body 3, which may impair safety.

As a method for solving the above-mentioned drawbacks, as shown in FIG. 3, there is a method in which the upper surface protection sheet 5', the flat cable main body 3, and the lower surface protection sheet 4' are connected by welding. FIG. 8 shows a welded part. In this case, although the above-mentioned drawbacks are solved, the workability of connecting the flat cable main body 3 becomes worse. That is, during connection work, since the top protective sheet 5' is present, it is difficult to insert the connector 7 shown in FIG. Ta.

The present invention has been proposed in view of the above-mentioned points, and includes a protruding piece that protrudes from the outer edge of the upper protective sheet, and the flat cable main body and the lower protective sheet are held and locked by this protruding piece. By integrating these three layers, construction time is shortened, and
A flat cable is provided for the purpose of making it easier to insert a connector and reducing the amount of adhesive tape used.

Embodiments of the present invention will be described in detail below with reference to the drawings. In FIGS. 4 and 5, a lower protection sheet 4 is foldably extended from one side edge of the flat cable main body 3, and the lower protection sheet 4 consists of an insulating material 1 in which a conductive plate 1 is embedded. It is made of the same material as the bottom protection sheet 4 and the flat cable body 3.
A perforation 9 is made at the bending part that is the boundary between the two. The perforations 9 can be easily torn during connection work. Top protection sheet 5 made of metal plate
Rectangular protrusions 6 protruding outward on both outer edges of the
are integrally formed at predetermined intervals in the longitudinal direction. This protruding piece 6 is connected to the flat cable main body 3.
This is to prevent it from slipping, and it can be folded back. The number of protrusions 6 may be such that the displacement of the flat cable main body 3 can be prevented, and is appropriately determined depending on the thickness of the upper surface protection sheet 5 to be used.

However, when installing the lower surface protection sheet 4
is attached to the lower surface of the flat cable main body 3 via the bent part, the upper surface protection sheet 5 is further attached to the upper surface of the flat cable main body 3, and the protruding piece 6 is bent downward as shown in FIG. flat cable body 3
and the outer edge of the lower surface protection sheet 4 is held and locked.

As mentioned above, the present invention consists of a flat flat cable body in which a band-shaped conductive plate is embedded in an insulating material, a bottom protection sheet attached to the bottom surface of the flat cable body for protection, and a A top protection sheet made of a metal plate is attached to the top surface for protection, and a protrusion that bends and locks the outer part of the flat cable body and the bottom protection sheet is attached to the top protection sheet. Since it is integrally formed to protrude outward from the outer edge, after connecting the flat cable body with a connector, attach a lower protective sheet to the lower surface of the flat cable body, and then attach an upper protective sheet. By bending the protruding piece, the bottom protective sheet and the flat cable body can be wrapped and locked to form a three-layer structure, which eliminates the conventional drawbacks of difficulty in inserting the connector and difficulty in seeing the connection part. It has the advantage of being able to In addition, by integrating the top protection sheet, the flat cable body, and the bottom protection sheet into three layers, and by using the protruding pieces, there is no misalignment of the three layers, and the protection function of the top protection sheet and bottom protection sheet is not lost. , it is highly safe, and since the three layers are integrated, it only needs to be glued to the floor once, and there is no need to install the three layers separately, which reduces the amount of adhesive tape used. It also has the advantage of being economical and requiring only a short installation time.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the conventional example, Fig. 2 is a perspective view showing the connected state of the flat cable main body,
FIG. 3 is a perspective view of another conventional example, FIG. 4 is an exploded perspective view of an embodiment of the present invention, and FIG. 5 is a perspective view of the same. 1 is a conductive plate, 2 is an insulating material, 3 is a flat cable main body, 4 is a lower surface protection sheet, 5 is an upper surface protection sheet, and 6 is a protrusion.

Claims (1)

[Scope of utility model registration request] A flat cable body with a band-shaped conductive plate embedded in an insulating material, a bottom protection sheet attached to the bottom surface of the flat cable body for protection,
A protruding piece that forms a top protection sheet made of a metal plate that is attached to the top surface of the flat cable body for protection, and that bends and hugs and locks the outer parts of the flat cable body and the bottom protection sheet. A flat cable formed by integrally protruding outward from the outer edge of the top protection sheet.